Contact element for an electrical plug connector apparatus

Abstract

A contact element for an electrical plug connecting device, having a molded first end section and a molded elongated receiving section which defines a longitudinal axis for mechanical and electrical coupling and / or receiving a mating contact element designed to be complementary to the contact element of a plug connecting device to be paired with the electrical plug connecting device, both of which are manufactured of an electrically conductive material. The elongated receiving section extends essentially cylindrically from the first end section. This end section as well as the elongated cylindrical receiving section are molded to be free of seams and butt joints by shaping the electrically conducting material by means of a force acting at least predominantly parallel to the longitudinal axis, and at least the receiving section molded by shaping the electrically conducting material forms a cylindrical interior sheathed by the molded electrically conducting material along the longitudinal axis.

Description

FIELD OF THE INVENTION[0001]The invention relates to an elongated contact element for an electrical plug connector device.BACKGROUND OF THE INVENTION[0002]In the prior art, electrical plug connector devices may fundamentally be designed as a socket or as a plug and they usually have a contact insert block, in which the generic elongated contact elements that are inserted are designed as elongated contact pins in the case of a plug as an electrical plug connector device and are designed as a socket in the case of an electrical plug connector device, the generic contact elements are embodied as elongated contact sockets. Such electrical plug connector devices are described in the standards DIN VDE 0623, IEC 60309-1, -2 and EN 60309-1, -2 in particular.[0003]The contact elements that are used serve accordingly for the corresponding mechanical and electrical coupling to a mating contact element of a complementary design. An elongated contact pin is thus mechanically and electrically cou...

AI Technical Summary

Benefits of technology

The present invention is about a new type of contact element that overcomes certain disadvantages of traditional contact elements. The contact element has a hollow cylindrical design, which reduces the likelihood of unwanted penetration of contaminants and moisture. This design also saves weight and cost compared to solid material contact elements. Additionally, the contact element can be filled with a less expensive material to further reduce costs. The receiving section of the contact element is closed on the circumference which saves material and reduces weight. The connecting device on the end of the receiving section can be formed using a die-casting, deep-drawing or impact extrusion method. This design allows for easy manufacturing and reduces complexity. Overall, this new contact element has improved performance and is more efficient in its design.

Problems solved by technology

However, according to EP 1 783 868, edges that must be joined by intermeshing teeth abut against one another because of the contact pin being bent from blanked flat material with mushroom-molded extensions formed on one edge to engage with complementary recesses in the other abutting edge, so unwanted contaminants and / or moisture can penetrate into the edge interspaces.

It has been found in particular that contaminants and / or moisture penetrating into such edge interspaces and possibly remaining there can lead to unwanted oxidation and / or corrosion, which may in turn result in increased transfer resistances in power transmission.

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